Pre-Charge - Bosch ACS 753 Repair Instructions

Plumbing and Mechanical
ACS 753, ACS 763, ACS 863 Service Manual
PRE-CHARGE PROCESS (R1234yf only if enabled)
During the pre-charge process (before to perform the charge), the unit charge a little amount of refrigerant in the
A/C system and perform a pressure test to check any leaks.
Figure 4-19. Pre-Charge
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Robert Bosch GmbH SP00D00609 2018-03-26